FAQ

Google Calendar can take up to 12–24 hours to sync a newly subscribed calendar. This is a Google-imposed limitation on how frequently they refresh external calendar feeds - it's not an AddEvent issue. Why the delay happens When someone...

The most common cause is the AddEvent JavaScript snippet not loading correctly on your page. Check that first before investigating anything else - it accounts for the majority of cases. Checklist in order of likelihood 1. JavaScript...

The most common cause is sending from AddEvent's default @addevent.com sender address. Switching to a custom sender email on your own domain - available on paid plans - resolves most spam issues immediately. Why the default sender causes...

This is usually a timezone issue. Make sure you've set the correct timezone on your event in AddEvent. If the event is set to the wrong timezone, it will display at the wrong time for subscribers. Check your event's timezone settings in the AddEvent dashboard.

You can reach AddEvent support at addevent.com/c/contact. The team typically responds via email. Professional and Enterprise plan customers receive priority support with faster response times.

The most common cause on iPhone is the in-app browser. If a user clicked your Add to Calendar link from within Instagram, Facebook, or another social app, they're in a sandboxed browser that can't access the Calendar app. Ask them to open...

This happens when the user's device has a different default calendar app than expected. AddEvent shows all supported calendar options and the user selects one. There is no way to force a specific calendar app - the choice always belongs to the user.

Unsubscribing depends on which calendar app the user subscribed through: Google Calendar: 1. Go to calendar.google.com 2. In the left sidebar, find the subscribed calendar under "Other calendars" 3. Click the three-dot menu next to it → select Unsubscribe Apple Calendar (Mac): 1. Open Calendar app 2. Right-click the subscribed calendar in the sidebar → Delete Calendar Outlook / Office 365: 1. Go to your Outlook calendar 2. Right-click the subscribed calendar → Delete Calendar or Remove from list Once unsubscribed, the calendar and all its events are removed from their app. They can always re-subscribe later by clicking the original Follow Calendar link.

Safari's Intelligent Tracking Prevention (ITP) is the most common cause of AddEvent embeds not rendering in Safari on Mac. It blocks third-party scripts, which can prevent the calendar widget from loading.

Add to Calendar buttons stop working for new clicks, new RSVP submissions are blocked, and new calendar subscriptions are rejected. Everything that's already active continues to function normally. What stops working (for new activity) -...

AddEvent handles daylight saving time automatically when you set a named timezone (e.g., 'America/New_York'). Named timezones shift for DST automatically. Avoid fixed UTC offsets like 'UTC-5' for events near DST transitions - they won't adjust.